EP 0004857 A3 19800402 - PROCESS AND MEANS FOR REMOVING TURBIDITIES
Title (en)
PROCESS AND MEANS FOR REMOVING TURBIDITIES
Publication
Application
Priority
DE 2816229 A 19780414
Abstract (en)
[origin: US4282001A] For the removal of turbidities in reaction mixtures clouded by sample material, especially for photometric measurement, there are added to the reaction mixture: (a) at least one low molecular weight organic compound, such as an aromatic alcohol or amine, which contains an electronegative substituent, for example a phenol or naphthol, which is substituted with one or more halogen atoms and/or hydroxyl groups and (b) at least one detergent which dissolves to give without compound (a), a clear solution and which forms a sparingly soluble complex with component (a), such as a non-ionic polyethylene oxide adduct or a cationic detergent, especially an alkyl, aralkyl or alkylthio ether or an alkyl or aralkyl ester of a polyethylene oxide glycol containing 8 to 22 carbon atoms in the alkyl radical and 5 to 25 ethylene oxide units or an alkyl dimethyl benzyl ammonium chloride compound containing 8 to 22 carbon atoms in the alkyl radical, in an amount sufficient for the appearance of a precipitate of the complex, whereafter further detergent is added thereto until the precipitated complex dissolves again.
IPC 1-7
IPC 8 full level
B01J 20/22 (2006.01); C12Q 1/54 (2006.01); C12Q 1/60 (2006.01); C12Q 1/62 (2006.01); G01N 1/34 (2006.01); G01N 31/00 (2006.01); G01N 33/48 (2006.01); G01N 33/96 (2006.01); G01N 33/04 (2006.01)
CPC (source: EP US)
C12Q 1/54 (2013.01 - EP US); C12Q 1/60 (2013.01 - EP US); C12Q 1/62 (2013.01 - EP US); G01N 1/34 (2013.01 - EP US); G01N 33/96 (2013.01 - EP US); G01N 33/04 (2013.01 - EP US); Y10T 436/25 (2015.01 - EP US)
Citation (search report)
- US 4011045 A 19770308 - BONDERMAN DEAN P
- DD 131970 A5 19780809 - BOEHRINGER MANNHEIM GMBH
- DE 2327894 B2 19750807
- DE 2724757 B1 19781221
- DE 2535953 B1 19761202
- DE 2612725 A1 19771013 - BOEHRINGER MANNHEIM GMBH
Designated contracting state (EPC)
BE CH DE FR GB IT LU NL SE
DOCDB simple family (publication)
US 4282001 A 19810804; AT 363613 B 19810825; AT A122479 A 19810115; BE 85 T1 19801107; CA 1131097 A 19820907; CH 651137 A5 19850830; DE 2816229 B1 19790628; DE 2816229 C2 19831110; EP 0004857 A2 19791031; EP 0004857 A3 19800402; FI 69929 B 19851231; FI 69929 C 19860526; FI 791223 A 19791015; FR 2473713 A1 19810717; FR 2473713 B1 19831118; GB 2055784 A 19810311; GB 2055784 B 19820825; IE 48273 B1 19841128; IE 790779 L 19791014; IT 1148235 B 19861126; IT 8086284 A0 19801030; JP S54138493 A 19791026; JP S6211307 B2 19870311; JP S62182651 A 19870811; JP S6345065 B2 19880907; NL 184080 B 19881101; NL 184080 C 19890403; NL 7915054 A 19801128; SE 456370 B 19880926; SE 8008598 L 19801208; SU 1443816 A3 19881207; YU 87379 A 19830121
DOCDB simple family (application)
US 2685179 A 19790404; AT 122479 A 19790216; BE 79100500 A 19790220; CA 322924 A 19790307; CH 673080 A 19790220; DE 2816229 A 19780414; EP 79100500 A 19790220; FI 791223 A 19790412; FR 8019180 A 19800903; GB 8032183 A 19790220; IE 77979 A 19790808; IT 8628480 A 19801030; JP 23638086 A 19861006; JP 4440979 A 19790413; NL 7915054 A 19790220; SE 8008598 A 19801208; SU 2746998 A 19790406; YU 87379 A 19790412